I'm just using Windows server monitor and I don't do any types of client probing as I have 30,000+ machines and it's just not reasonable to probe that many machines. We have a mix of Windows 7, 8.1 and 10 machines and as long as they authenticate to the domain we have no issues reading the user mapping from the domain security logs. When I originally set this up it didn't work because I was not auditing the proper events on my domain controllers and I had problems with the ID dropping and had to set the cache to 1 minute more than my Group Policy refresh time, so I have my cache set to 121 minutes as I notice when the GPO refreshes it trips an event in the security log.
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